Use a mesh as a path with correct tilt information for use with "duplicate frames"
First create a loop cut in the middle of your Path, 





Then press CtrlI while the loop cut is selected to select everything appart from this exact edge and delete. Or if you want to keep the path you have to just duplicate this loop cut and Separate it by Selection, using P key,





After that you have to convert this edge into a Curve, to do that press AltC > Curve from Mesh/Text.





Now you have to get your model of the planch,





Give it an Array Modifier, and set the spacing between each planch as well as the number of the planches to fit the Curve.







Finally apply the Aray Modifier and add a Curve Modifier, then choose the Curve (it is propably going to be under the name of PLANE)






The Result